6 commissioning and measuring operation, 1 commissioning, 2 measuring operation – Dwyer MFS2 User Manual
Page 11: 7 maintenance and cleaning
Commissioning and measuring operation
6 Commissioning and measuring operation
Before switching on the MFS2 for the first time, please follow the instructions in the following
section.
6.1 Commissioning
Check that
the MFS2 has been installed correctly and that all screw connections are sealed.
the electrical wiring has been connected properly.
the measuring system is vented by flushing.
Switch on the supply voltage.
The red LED is lit permanently. The MFS2 is ready for use and goes into measuring
operation.
6.2 Measuring operation
The red LED is constantly lit to indicate that the MFS2 is
operational.
The green LED blinks according to the frequency of the output
signal.
This blinking is not perceptible to the human eye at frequencies
above 30 to 40 Hz,
so the green LED appears to be constantly lit.
Frequency output:
The frequency output provides a flow-
proportional PNP/NPN square wave signal.
7 Maintenance and cleaning
Maintenance:
The MFS2 is maintenance-free and cannot be repaired by the user. In case of a defect, the
device must be replaced or sent back the manufacturer for repair.
CAUTION! Material damage!
When opening the device, critical parts or components can be damaged.
Never open the device and perform any repair yourself.
Cleaning:
Clean the MFS2 with a dry or slightly damp lint-free cloth. Do not use sharp objects or
aggressive agents for cleaning.